Burnishing-machine.



C. H. HART :v G. B. STRETCH.

BURNISHING MACHINE.

APPLICATION FILED DEO. 5, 1911.

Patented Jan.14,191:-a.l

of Hartford, in

`25 being broken away. Fi

saire vCHARLES H. HART, oE'HARTroRn, A Nn GEORGE E. STRETCH, oF MERIDEN,

CONNECTICUT.

BURNISHING-MACHINE.

` To aZZ whom it may concern.'

Be it known that we, CHARLES H. HART and GEORGE B. STRETCH, both citizens of the United States, and residents, respectively,

the county of Hartford, and Meriden, in the county of New Haven, each in the State of Connecticut, havel invented a new` and Improved Burnishing-Machine, of which the following is a specification.

Our invention relates more especially tothat class of devices employed for burnishing silverware and an object of our invention, among others, is to provide a machine of this class in which the' burnishing operation may be performed in an eX- tremely eEective and expeditious manner.

One form of device embodying our invention and in the construction and use of which the object herein set out, as well as others, may be attained is illust-rated in the accompanying drawings in which- Figure 1 is a view in vertical section through a machiney embodying our invent-ion, the holding arms located uppermost g. 2 Ais a view in plane located at right anplane of section of Fig. l, two the holding arms being removed and one being broken off. F ig. 3 is a detail view in Section showing the construction of the holders. Fig. 4 is a like view the plane of section being at a right angle to that of Fig. 3.

Our improved machine herein illustrated and described embodies an apparatus in which the burnishing of an article may be performed at substantially a single operation, and in which the surface of the burnished article shall be uniform in appearance and free from marks, shades or the like. In the accompanying drawings the numeral 6 denotes a base to which supports 7 are secured in any suitable manner. and .in which supports a sha-ft 8 is journaled.

Holding arms 9 are secured to the shaft in any suitable number, the device herein illustrated having four extending in diametrically opposite directions, as shown in Fig.

' l of the drawings. These arms bear at their ends holders for retaining the articles to be burnished, which holders may be ofany suitable form and construction. In the form of holders shown herein a sleeve 10 is fitted to slide upon, each arm Vfor the purpose of encircling an opening or slot 11 vertical section on gles to the of I Specification of Letters Patent. Patented Jan, 14,1913, Application filed December, 1911.

Serial No. 664,065.

in each of said arms. has notches l2 forme pcsite sides and op a shoe 13 of tending throu which shoes h in the notche An end of each sleeve d on diametrically opposite the opening l1, copper or similar metal exgh each opening l1, each of as projecting parts ltlocated s and the thicker portions 15 of which extend withinthe sleeve as shown in Fig. 3 of the drawings. A rest 1G also formed of ,copper or like material is located Within each openin 1l each rest having lips 17 to hold 1t in place, as plainly shown 4in Fig. 3 of the drawings. A lock nutI 18 fits the threaded portion 19 of each arm to press the sleeve against the article 21-located in the opening 20 and for the purpose of clamping it securely therein. The shaft is provided With a handle 22 or' like means for rotating it to place articles supported by t-he arms in any desired position, for the purpose of placing articles in and removing them from the holders, and for placing them in position to be subjected to the burnishing operation, a pin 23 being shown herein as a means for locking the handle in place. A burnisher receptacle 24 constructed of any suitable material is suspended from the shaft 8 that rotates freely within said receptacle, burnishers consisting of small balls 25 of any suitable material, as hardened steel,and of any suitable number being loosely deposited Within the receptacle, as shown in Figs. l and 2 ofthe drawings. The receptacle may have overturned lips 26 if desired for retaining the balls or burnishers in the receptacle. This receptacle may be of any suitable form and shape to perform the'function required, and its walls may be constructed in various ways, as shown herein the bottom 27 being corrugated to prevent the balls from rolling too freely from side to side, although it is not essential that such means shall be provided.

In operation it is intended that the articles, as spoons 21, shall be subjected to the rolling action of the balls, this action being causedy by the movement ofthe articles in the mass of balls or by a movement of the receptacle causing the balls to pass in roll-v 105 ing contact with the articles. In the, form l' of construction shown herein the receptacle is given a rocking movement on the shaft 8 as by means of a pitman 28 secured at one end to the receptacle and at the other end to 110 a rotating dish 29 and operated trom any I scribed torA determining this result.

titl

its a. means tor increasing the pressure ot the balls upon the articles being burnished, magnetic torce may be applied to the balls in any suitable manner, one :term ora deyice being shown herein and consisting ot a magnet 30 secured 'to the bottom ot the receptacle in such manner that its torce may be transmitted to the balls Within the receptacle. such torce being generated as by means ot a current ot electricity trom a battery 3l or other suitable source ot electric energy.

'lllie apparatus shown herein embodies a single set ot holders located Within the re# c'eptacle, but our improrement contemplates the employment ot holders.v in such number of sets as may be desired, and when magnetic torce is used, which honerer is not at all times necessary, the means tor obtaining that torce may be ot any suitable construetion that will attain the desired end.

lllhile ne hare shown and described herein a satisfactory construction ot apparatus embodying our invention embodied in the following claims itis to be understood that We do not contine the intent-ion to an apparatus so constructed.

l. Si receptacle haring a bottom arranged to assume diderent angular'positions with respect to a vertical plane as the receptacle is moved, balls located Within the receptacle, a. holder projecting into the receptacle, means tor securing an article in the holder, and means :tor moring the receptacle.

Q. :t receptacle having a bottom arranged to assume different. angular positions'trith respect to a rertical plane as the receptacle is moved, balls located within the receptacle, a holder projecting Within the receptacle, means tor retaining the holder against moyement, and means :tor moring the receptacle.

3. A shatt, a receptacle suspended trom the shaft and haring a bottom arranged to assume. did'erent angular positions with re spect to a rertical plane, a holder arm projecting :trom the shaft, balls located in the receptacle, holder supported by said arm, and means tor causing a movement ot the receptacle.

t shatt. a receptacle suspended trom -the shatt, balls located within the receptacle,

a holder arm projecting trom the shalt into annonce the receptacle, a holder supported by said arm, means itor retaining the against movement, and `meansitor rocln'ng the receptacle on said shaitt. l

5. ift receptacle, a shaft, holder arms pro-L jecting in opposite directions trom said shatt and adapted toy be located in said receptacle, holders supported by said arms, means tor rotating the sha-tt to locate said holders successively in the receptacle, and balls located Within the receptacle.

ti. A shatt, holder arms projecting op' positie directions trom the shatt, holders supported by said arms, a receptacle suspended trom the shatt to receive said holders, balls located in said receptacle, means tor roclr'ing the receptacle on the shatt, and means tor holding the shatt against rotation. y

' 7. l receptacle, balls located in the receptacle, a holder arm projecting into the receptacle, a holder supported by said arm, means tor imparting movement to the holder and the balls one with respect to the other, and means tor supplying magnetic torce to the balls.

S. A shaft, a receptacle suspended trom the shatt, a holder arm projecting trom the shatt into the receptacle, a holder supported by the holder arm, balls located `Within the receptacle, means tor supplying magnetic torce to the balls, and means for imparting movement to the holder and receptacle one with respect to the other.

9. :l shaft, a receptacle suspended troni `the shatt, holder arms projecting trom. the

shatt in opposite directions and adapted to be located in the receptacle, balls located in the receptacle, means tor supplying magnetic torce to the balls, means .tor rocking the receptacle, and means itor holding the shatt against rotation. 5

10. A receptacle, 'balls in the receptacle, means tor supporting an article vto be burnished in the receptacle, means tor imparting mor-ement to the holder and balls, one with respect to the other, and means tor supplying magnetic torce to the balls.

ll. ,d shaft, a receptacle suspended trom .the shalt and haring a curved bottom, balls located m said receptacle; a holder project.- ing into the receptacle, means tor securing an article in the holder, means tor retaining the shaitt against movement, and means for Vibrating the holder on said shalt.

CHARLES ld. HART. GEURGE B. SlllRllUld.. Witnesses:

Waarna Vannnrrennonr,

0. Srotrnnn, Jr.. 

